{"id":"PYSEC-2026-582","summary":"Malicious code in mflux-streamlit (PyPI)","details":"Part of the \"Hades\" wave of the Shai-Hulud supply-chain campaign. On 2026-06-08,\nmalicious phantom releases of mflux-streamlit were published to PyPI using stolen\ncredentials. The package executes a bundled JavaScript payload (via the Bun\nruntime) on import that harvests and exfiltrates credentials and attempts\nself-propagation. This entry is a summary; behavior may not be fully\ncharacterized here. See the linked references for detailed analysis and\nindicators of compromise.\n","aliases":["MAL-2026-5301"],"modified":"2026-06-29T21:00:05.031258102Z","published":"2026-06-29T16:07:45Z","references":[{"type":"EVIDENCE","url":"https://inspector.pypi.io/project/mflux-streamlit/0.0.3/packages/55/aa/ed575e2fa490de397e5d5c017b1093c8439f6718db903f0fc2d5300ae5c9/mflux_streamlit-0.0.3-py3-none-any.whl/mflux_streamlit-setup.pth"},{"type":"EVIDENCE","url":"https://inspector.pypi.io/project/mflux-streamlit/0.0.4/packages/59/7d/442dea3530fbfceaee95cf549bbc668cdba6d317e2ede244a2fd327f79ec/mflux_streamlit-0.0.4-py3-none-any.whl//mflux_streamlit-setup.pth"},{"type":"ARTICLE","url":"https://www.endorlabs.com/learn/shai-hulud-hades-wave-hits-six-pypi-bioinformatics-packages"},{"type":"ARTICLE","url":"https://www.stepsecurity.io/blog/the-hades-campaign-pypi-packages"}],"affected":[{"package":{"name":"mflux-streamlit","ecosystem":"PyPI","purl":"pkg:pypi/mflux-streamlit"},"versions":["0.0.3","0.0.4"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/mflux-streamlit/PYSEC-2026-582.yaml"}}],"schema_version":"1.7.5"}